Quartz
Quartz is a modular approach to a casting bar addon. An overview of (hopefully most of) the modules:
*Player
The core of Quartz is lightweight implementation of a standard casting bar, with configurable size, text and icon positioning, and colors.
*Target/Focus
Implementation of target and focus casting bars in similar fashion to the player cast bar.
*Buffs
Display of target and focus buffs and debuffs as duration bars.
*Flight
Hooks into FlightMap or InFlight to display the current flight progress on your casting bar.
*Global Cooldown
Displays a tiny spark-bar to show your Global Cooldown near the cast bar. Helpful for those who'd rather not squint at their action bars to see when they can cast again.
*Interrupt
Changes the color and text of your casting bar to help show that your cast has been interrupted (and show who interrupted it).
*Latency
Displays the amount of time spent between cast send and start events, in the form of a bar at the end of your casting bar, with optional text that displays the actual duration of the lag. This helps in canceling casts when they will not actually be interrupted, especially for users with consistently high pings.
*Mirror
Shows the 'basic' timers such as breath and feign death, as well as some 'odd' ones such as party invite time, resurrect timeout, and arena game start, and a framework for injecting custom timers into the bars.
*Range
Recolors the casting bar when your cast target moves out of range mid-cast.
*Swing
Displays a swing timer for your melee weapon as well as hunter autoshot.
*Timer
Allows for creating custom timers displayed on the mirror bars.
*Tradeskill Merge
Merges multiple casts of the same tradeskill item into one big cast bar.
Use /quartz to bring up the configuration menu.
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Posted Jan 22, 2026Hi,
I updated the .toc file to 120000, but everytime I cast a spell the following message pops up:
Message: Interface/AddOns/Quartz/modules/GCD.lua:116: attempt to compare local 'dur' (a secret value)
Time: Wed Jan 21 22:11:51 2026
Count: 6
Stack:
[Interface/AddOns/Quartz/modules/GCD.lua]:116: in function '?'
[Interface/AddOns/DBM-Core/Libs/CallbackHandler-1.0/CallbackHandler-1.0.lua]:109: in function <...ore/Libs/CallbackHandler-1.0/CallbackHandler-1.0.lua:109>
[C]: ?
[Interface/AddOns/DBM-Core/Libs/CallbackHandler-1.0/CallbackHandler-1.0.lua]:19: in function <...ore/Libs/CallbackHandler-1.0/CallbackHandler-1.0.lua:15>
[Interface/AddOns/DBM-Core/Libs/CallbackHandler-1.0/CallbackHandler-1.0.lua]:54: in function 'Fire'
[Interface/AddOns/Quartz/libs/AceEvent-3.0/AceEvent-3.0.lua]:120: in function <...ace/AddOns/Quartz/libs/AceEvent-3.0/AceEvent-3.0.lua:119>
Locals:
self = <table> {
modules = <table> {
}
defaultModuleLibraries = <table> {
}
name = "Quartz3_GCD"
orderedModules = <table> {
}
db = <table> {
}
baseName = "Quartz"
enabledState = true
defaultModuleState = true
moduleName = "GCD"
}
event = "UNIT_SPELLCAST_START"
unit = "player"
guid = "Cast-3-4254-2552-580-34914-0041714117"
spell = 34914
start = <no value>
dur = <no value>
(*temporary) = <table> {
isOnGCD = true
modRate = <no value>
activeCategory = <no value>
isEnabled = <no value>
startTime = <no value>
timeUntilEndOfStartRecovery = <no value>
duration = <no value>
}
(*temporary) = <no value>
(*temporary) = "attempt to compare local 'dur' (a secret value)"
starttime = 7241.890000
duration = 1.137000
gcdbar = Quartz3GCDBar {
Center = Texture {
}
RightEdge = Texture {
}
backdropInfo = <table> {
}
BottomEdge = Texture {
}
BottomLeftCorner = Texture {
}
BottomRightCorner = Texture {
}
TopEdge = Texture {
}
TopRightCorner = Texture {
}
TopLeftCorner = Texture {
}
LeftEdge = Texture {
}
}
Anyone knows how to fix this?
Ty
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Posted Jan 21, 2026I've managed to get this working in Midnight by updating the toc file with 12000. Hopefully the addon author will release a proper version soon :)
For anyone wondering how to do it
Locate the toc file in the quartz directory in your addon folder
update Interface with 12000. It should read something like this
## Title: Quartz
## Interface: 120000, 11508,20505,50503,110207
## Notes: Modular casting bar.
## Author: Nevcairiel, Nymbia
You can do this with any addon that isn't updated but there is a chance it may not work with the new blizzard APIs. I've been running Quartz for about 20 mins now with this change and I'm not getting any lua errors so hoping its all good
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Posted Jan 21, 2026In reply to Mencc: Works great. Thank you so much.
Unfortunately, this doesn't work for bagnon, decursive, and MSBT.
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Posted Jan 21, 2026In reply to YetiMitLaser: I think MSBT will be busted for good due to the changes anyway unfortunately.
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Posted Jan 21, 2026In reply to Mencc:
This works but it throws an Ace error at Blizzmove.
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Posted Jan 21, 2026In reply to Mencc: This did work, but you need to disable target casts or it throws an error everytime they cast a spell
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Posted Jan 21, 2026In reply to Mencc: It works but is incompatible with Better Timeline
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Posted Jan 20, 2026if the addons doesn't show on ur list after updating it, simply just right click on it and Reinstall, its working with me now
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Posted Jan 20, 2026For anyone having issues in BCC such as the addon not showing up in your list, or giving you errors. If you download the "3.7.16a" version (for vanilla classic, MoP, etc.) manually and replace all the files in the BCC quartz folder with it, you should be able to use quartz in BCC with no errors and function as normal.
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Posted Jan 19, 2026And for no apparent reason Quartz is now in my WoW TBC Anniv. add-on list and it works fine again.
I didn;t do a thing to it but it started working again after it showed up.
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Posted Jan 18, 2026Will this be updated for midnight?
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Posted Jan 20, 2026In reply to Mrcows063: Second this i love using quartz and hope it gets updated
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Posted Jan 18, 2026Confirmed latest version broke Quartz. It doesn't show up in, in game add-on list and Quartz Rank is showing Dependency Missing.
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Posted Jan 18, 20263.7.17 (2026-01-18) latest changelog broke it for anniversary realms, dont work at all now
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Posted Jan 18, 2026The addon worked a sec ago not in bg dosent work after bg dosent work fix it bc dosent work dosent show in addons
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Posted Jan 17, 2026This gonna be updated for Midnight?
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Posted Jan 17, 2026Now in TBC your stuck with that broken addon ! If you delete it the default castbar is gone even if you uncheck disable default castbar on quartz ! Even i you run script to reset cast bar !
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Posted Jan 16, 2026cant open up options using the /quartz cmd in BCC :( any fix coming? :)
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Posted Jan 17, 2026In reply to stenstureog: For me the latest version 3.7.16a works in BCC without any issues.
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Posted Jan 17, 2026In reply to stenstureog: The fix is "easy". You have to add a few lines in the Config.lua from line 195 to line 206.
Alternative you can download and replace it with my lua file. Or download the version @kazso mentioned.
https://github.com/tarkeh/Quartz/blob/main/Config.lua